I had some time this morning at CES to listen to the Sine headphones using both their music selection from an Ipad and my own off of my iPhone.   as a sweep of the types of music I prefer I listened to the following on the headphones:   Death by Diamonds and Pearls by Band of Skulls True...

i own both and personally prefer the coppers. i listen to mostly classic rock, alternative, and some metal. the build quality on my coppers sucks though whereas my shures seem bulletproof in comparison. tf10 has displaced both as my go to iem

it doesnt put out much power though. compared to forte/xonar stx/omega claro halo which all have dedicated headphone amps it puts out far less power. whether you need that power is another question though.    Quote:  

the x-fi titanium hd does not have a built in headphone amp. the forte does have a headphone amp. so if you really need a headphone amp to drive your headphones then that would slim down your choices

the x10's are super flimsy. so if your careful with them they are nice headphones. just be aware that you will need to be very careful with them. they are probably the most comfortable iem ive used

well ive found that my coppers dont sound good with total isolation. so i wear them with foam supertips which dont isolate very well. so the isolation comment could just be an individual tip choice that ive made. 

oooh i have both. the se425's never get used. i enjoy the tf10's far more, the se425's sound boring to me. comfort wise i find both to be equal,    you said your worried about the e425's being cold, analytical and lacking base, in my opinion that is an accurate portrayal.   your worries...

the sony hybrids really improved my tf10 experience, a must. the biggest difference between the two for me is isolation, the coppers dont isolate at all while the tf10 do isolate. 

No amp needed. And I havnt noticed any change in sound after around a hundred hours. They have been excellent iems.

Hey where are you guys buying these? I see them at bh Photo video and front end audio. But they are out of stock at bh photo video. Is front end legit? Any other places I should look?

ive had them for three months now and i abuse them. but they have been perfect drop after drop.